Semaphore.



N0- 880,629. I PATENTED SEPT. 11, 1906.

J. F. WEBB, JR.

SEMAPHORE. APPLICATION FILED NOV. 11. 1906.

8 SHEETS-SHEET 1.

- MVENTOR Jaiz FYI/e65 J5:

Arm/WEN.

8 SHEETS-SHEET 2.

INVENTOR PATENTEDSEPT. 11, 1906-,

6 a 0. O 1 E i a 2:225; 5 o a 4 a 9 m h m ll if lrl J. F WEBB, JR.SEMAPHORB.

APPLIUATION FILED NOV.11, 1905- WIT/VESSES:

P, WEBB, J3.

SEMAPHORE.

APPLICATION FILED NOV.1l.1906.

WITNESSES.

INVENTO/i' Arron/m3.

THE mamas Pzrzns ca, wAsnlNoToN, n, c.

PATENTED SEPT. 11, 1906.

B SHEETSSHEET 4.

No. 830,629. I PATENTED SEPT. 11, 1906.

J. F. WEBB, JR.

SEMAPHORE.

APPLICATION FILED NOV. 11, 1905.

8 SHEETS-SHEET 5.

WITNESSES.

IIVVENTOR (J90)? Wi l bbjr 1n: NQRRIS Pa -ins co, musmmzrou, u. c.

No.830fi29.' PATENTED SEPT.11,1906 J.F,WEBB,Jm

SEMAPHORE.

APPLICATION FILED NOV.11, 1905.

8 SHEETS-SHEET G.

Lll lL l /ll l I I lu l I WITNESSES" I l INVENTOH I clam E i l ebb r.

. A I v i W I N 7 7 ATTORNEYS.

flu: Nnmus PETERS 5a.. WASHINGTON. u. c.

N0; 830,629,. PATENTED' SEPT; 11, 1906.

J. P. WEBB, JR.

SEMAPHORE.- An LmATIoN FILED 110v. 11, 1905.

- 8 SHEETS-SHEET 8.

r V ATTORNEYS,

THE NORRIS PETERS :0., WASHINGTON, o c

UNITED STATES PAfineNr orrros.

JEAN F. WEBB, JR, OF

DENVER, COLORADO, ASSIGNOR TO THE ELECTRIC SIGNAGRAPH AND SEMAPHORECOMPANY, A COR- PORATION OF ARIZONA TERRITORY.

SEMAPHORE.

Specification of Letters Patent.

Patented Sept. ii; 1906 Application filed November 11,1905. Serial No.286,875.

' naling-shaft carried by the supporting-frame which controls thesignals, both blade and light arotatable operating-shaft; connectionsbetween the rotatable operating.

shaft and the signaling-shaft, whereby the rotatable motion in theoperating-shaft is converted i'nto oscillating motion in the signalshaftan electric motor for rotating the operatingshaft;electrically-controlled means for starting the motor intooperationfmeans for automatically cutting out the motor from operationat times, and means for sending in return-signals from the semaphore tothe tower operators station to indicate the position of the signals, andmeans whereby the signaling-shaft can be locked from movement when inthe extremedanger or safety position.

The present invention has for its object to provide a semaphore of thischaracter of a very simple and effective construction which can bereadily and positively operated to serve its intended purposes and whichcan be easily and cheaply manufactured.

In its more subordinate features the in vention consists in certainnovel construction, combination, and arrangement of parts, all of whichwill be first described in detail and then be specifically pointed outin the appended claims, reference being had tothe accompanying drawings,in which Figure 1 is a perspective view of my invention, the signalbeing shown in full lines in its danger position and in dotted lines inits safety position. of my invention, showing the parts in theirdanger-indicating position, the cover or housing being removed to eXposethe interior mechanism. Fig. 3is a front elevation showfied arrangementof parts cifically referred to.

specific ally signal-bar 5, to one end Fig. 2 is a perspective view inthe danger positlon, the housing being shown in section.

Fig. 4 is a side elevation showing the position of the parts when theblade is in the danger position, and the cover or housing being shown insection. Fig. 5 is a similar view showing the position of the parts whenthe blade is in its safety position.

Fig. dis a detail perspective view of the rotatable operating-shaft withits attached parts.

Fig. 7 is a similar view of the signal-shaft with its attached parts.perspective view of ism for controlling the motor.

Fig. 8 is a detail the electric-trip mechan- Fig. 9 is a diagrammaticview showing the circuits when the parts are in their safety position,the flowing current being designated by arrowheads. position of theparts when the signal is set to its danger-indicating position.

Fig. '10 is a similar view showing the Fig. 11 is a showing aslightly-modiwhereby the return-signal is merely instantaneous and notcontinuous and which will hereinafter be spe-' Fig. 12 is aslightlymodified form of my invention hereinafter referred to. Figs. 13and 14 are diagrammatic views of modified form of my diagrammatic viewinvention hereinafter specifically referred to.

Referring now to the accompanying drawings, in which like numerals andletters of reference indicate like parts in all of the figures,-1 1designate apair of upright supports which are secured to a post 3 byscrews 2 2, as shown.

Mounted in bearings 1 1 in the uprights 1 1 is a shaft 4, which I shallhereinafter term the signal-shaft, and the shaft 4 projects beyond thesupports 1 1 and carries a of which a counterweight 6 is secured bybolts 9 9, while a semaphoreeblade 7 is secured to the other end of thebar 5 by bolts 10 10, as shown. A nut 8, threaded onto the signal-shaft4, serves to hold the bar 5 in place. At the other end adjacent theupright support '1 I secure a collar 12 to the shaft 4 by a set-screw13, a similar collar 12 being attached to the shaft 4 adjacent the othersupport 1 by a setscrew 13 ing the position of the parts when the bladeis 4, one 11 adjacent the collar 12, to which it I support 1*, is acollar 1.7, which is secured in place by a set-screw 18, as shown. Anarm or lever 19 is attached to the collar 17 by rivets or screws 19 19,and the arm 19 is slotted, as at'19 for a purpose presently understood.20 20 designate bars secured belowthe shaft 4 to the supports 1 1 andprojectin out at right angles thereto, to which bars an a pair ofsimilar bars 21 21*, attached to the supports 1 1 respectively, at thetop, the upright supplemental supporting-bars 23 24 are fastened. Thebar 24 is bent inwardly, as at 24 24, toward the bar 23, as shown.

Mounted in bearings 23 24 in the bars 23 24 is a rotatable shaft 25,hereinafter called the rotatable drive or power shaft, one end of whichprojects beyond the support 24 and receives a crank-arm 32, which issecured in place by a nut 33. The crank-arm 32 at its free end has awrist-pin 34, which passes into the slot 19 of the arm 19 to operativelyconnect the arm 19 with the crank 32. Secured to the drive-shaft 25 by aset-screw 27, passing through a collar 26 is a gear-wheel 26, havingperipheral teeth 26 26 of the worm-gear type, for a purpose presentlyunderstood 28 designates a broad collar attached to the shaft 25 by aset-screw 29, and the collar 28 carries a pair of suitably-spaced fiberor other insulated radial blocks 30" 30 which carry circuit-closingbrushes 31 31*, respectively, to close the return-signal circuits,hereinafter referred to.

The gear-Wheel 26 carries a pair of trip fingers or pins 35 35 spaced asuitable distance apart to correspond with the blocks or plugs 30 30hereinbefore referred to, and the fingers 35 35 serve to release themotor-controlling switch to cut out the motor from operation at properintervals, as will be hereinafter fully understood.

Above the collar 28 an insulated block 42 is secured to the support 24by screws or other suitable means, and the block 42* carries two pairsof contacts 42 42 and 42 42 one contact 42 42 of each pair beingelectrically connected together and grounded through the connection 42,while the other terminals 42 42 respectively, connect to thereturn-signal wires 42" 42 which containin their circuit thereturnn-signals 42 42*, respectively, .andthe cut-out switch 42 42,respectively. A source of electric energy 42 connects signal-wires 42 42to the ground,

as diagrammatically shown in Figs. 9, 10,

and 11.

37 designates a cross-bar secured to the arms 21 21 to which theattaching bar or of the motor 36 is secured by bolts 38 38 The motor 36has an armature 36 and a field 36 of the usual type and has its shaft 36mounted in bearings in the brackets 36 36 respectively, as shown. A worm36 is secured to the shaft 36 and meshes with a worm gear-wheel 26,whereby the motion of the shaft 36 is imparted to the shaft 25. Aspacing-rod 39 is secured between the supports 1 1' at their top by nuts40 40 36 designates the motor-commutator with which the brushes 36 36cooperate. The brushes 36 36 are held by brush-holders 36 36respectively, to which the field-wire terminals 36 36 respectively,connect.

36 36 designate bindingposts, one of which, 36, connects with a terminalof the motor-operating source of electric energy 52, while the otherterminal, 36, connects with one terminal 41 of the motor-controlledswitch MOS through wire 41. The other terminal 41 of such switchconnects with the other terminal of the source of electric ener throughthe wire 41. The motor-field and armature-terminals connect with theposts 36 36, as shown.

The switch MOS comprises an insulated base 41 secured to the bar 23,upon which base a circuit-closing magnet 41 is mounted. To the magnet 41the line-wires 41 41 of the operating-circuit are secured.

41 designates the armature for the magnet 41 which armature carries aclosurecontact 41 for cooperating with and the said armature isprevented from dropping too far by a stop 41 I The magnet 41 and itsarmature 41 are mounted on a frame 41 and the magnet and the line wireterminals unite through the binding-posts 41 41 p A trip-bar 41 isfulcrumed on the block 41 and has a shoulder 41 for receiving thearmature 41 to lock it; in its circuit-closing position and afinger-tripping portion 41 to be engaged by the pins 35 35 during theirmovement at predetermined times, as will be presently more fullyexplained. A long spring 41 holds the mal position.

- 22 designates an arm secured to the support 1 below the shaft 4, whicharm has a bracket'45 attached thereto by bolts 45 45*, as shown.

46 designates a lam carried by the bracket 45. A hood 44 is held overthe lamp 46 by being secured to a frame 43, which is in. turn secured tothe arm 20, before referred to.

The housing 47 incloses the entire operating mechanism of the device,and the housing 47 is provided with signaling windows or openings 4848*, covered by glass covers trip-bar 41 in its northe contacts 41 41,

39 39 of white lenses which register with the lamp 46 and with thesignal-disks 15 15 when the signal is in its danger-indicating position.

50 is a hinge for the door back of the covering 47, by means of whichthe door is secured to the housing.

51 designates a hasp riveted to the bottom part of the door of covering47 While a staple 51 is secured to the bottom of the covering 47, and alock 51. looks the hasp and staple together to keep the door lockedshut.

Instead of running two line-wires 41 41 from the signal to thepower-operating station one line-wire 41 may be grounded at the signaland also at the station, as shown. The other line-wire 41. at the toweroperators station is in circuit with the switchbutton P and a suitablesource of electric energy S, as shown, whereby the signal set ting maincircuit can be closed to energize the magnet 41 to close themotor-circuit in a manner presently explained.

The line-wire 42 preferably contains a red signal-light 42 at the toweroperators station and a suitable cut-out switch, as shown, while theline-wire 42 contains a white sigrial-light 42 and a cut-out switch, asshown.

Operation: Assuming the parts to be in the position shown in Fi 2, whichis the dangerindicating position, with the dangerindicatingreturn-signal set and the semaphoreblade and light-signal at theirdanger-indieating points, the armature 41 of the motorcontrol switch.being down to open the motorcircuit and the parts being at rest. Nowassume that the operator desires to move the blade into the safetyposition. He merely presses the button in the main circuit, thus closingthe main circuit to energize the magnet 41 which in turn raises thearmature 41 and closes the motor-circuit through the contacts 41 41,thus permitting the motor to rotate, and in doing so its motion will becommunicated to the wheel 26 to turn it in the direction of the arrow inFig. 4, thus causing the crank-arm 32 to be rotated, which causes theshaft 4 to rock and carry with it the arm 5 until the parts are moved tothe position indicated in Fig. 5, which shows the parts in the safetyposition. As soon as the parts reach their safety-indicating positionthe circuit-closer 31 will close the return-signal circuits at contacts42 42, and

thus operate the white signal-light at the tower operators station, andat the same time the pin 35 will engage the finger-trip 41 of thetrip-bar 41 g and release the armature 41 which opens the motor-circuitat the contacts 41 41 and permits the motor to stop operating. Themomentum of the parts will carry the wheel 26 aslight distance farthersufficient to permit the pin 35 disengaging itself from the trip-bar 41The parts are now in their normal or safety position, as indicated inFig. 5, with the white light showing directly through the white lenses49 4 9 the red glasses 15 .15 being held up and out of alinement withthe light by the arms 11 11 and the brackets 14" 14*. When the operatordesires to move the blade into the danger position, he momentarilycloses in his office the electric circuit through the wires 41 41 andmagnet 41 by means of the push-button. or switch in the tower operatorsoflice, thus causing magnet 41 to again attract armature 41, which thencloses the circuit between the contacts 41 41 permitting the motor torun. The armature is held up after the current is cut off from mag- .net41 by reason of the shoulder on the tripbar 41 supporting it, thusmaintaining the circuit closed during the proper intervals. As the motorrevolves this motion is again imparted to the wheel 26 to turn the shaft25 through the worm 36 and the wheel 26. The-revolution of the shaft 25,which has the arm 32 attached to it, causes wrist-pin 34, which issecured to the outer end of the arm 32, to describe a circle, as shownby dotted and dash lines in Fig. 12. The wrist-pin 34 being constantlyengaged in the slot of the arm 19 causes said arm with each revolutionof the shaft 25 to oscillate and describe an arc of a circle. As the arm19 is fastened at its inner end to shaft 4 the movement of the arm 19 iscommunicated to shaft 4, which in turn communicates the same movement tothe bar 5, to which the signal-blade 7 is attached, thus raising andlowering the blade 7 as the arm 19 is moved. In moving from the safetyto the danger position the arm 19 is lowered and the blade 7 being onthe opposite side of the shaft 4 is raised to the position shown inFigs. 1 and 2. As before stated, the wheel 26 has two pins 35 35projecting from the side toward the support 1, and as the worm 556rotates the wheel 26 in moving the blade 7 to danger position just asthe danger position is reached the pin 35 engages the bottom part of thevertical portion of trip-bar 41 g pulling such trip-bar 41 away sothatits shoulder disengages armature 41 which permits said armature todrop away from contact with the contact terminals 41 41", and thus breakthe circuit from battery 52 to the motor 36 and cause motor 36 to stop.The momentum of the parts carries the pin 35* beyond and out ofengagement with the trip-bar 41 As the blade 7 is raised to its dangerposition the red glass 15 15 will be brought into register with thewhite lenses, causing the light to show red. As the signal reaches itsdanger position the contact 31 'will close the returnsignal circuit inwhich the red or danger-indicating light is located, and thus set thereturn-signal to show danger.

ITS

The return signals may be kept lighted so long as the semaphore is setor until the operator breaks the circuit by the switch at his oflice butif it be found desirable in practice that the return-signal be butmomentary the contact-brushes 31 31 may be set a little in advance ofthe position shown in Figs. 1, 2, and 3 to the relative position showndiagrammatically in Fig. 11, so that the contacts 31 31 will move out ofengagement with their respective operating-signal con tacts as the pins35 35 respectively, engage the trip-bar 41 thus breaking the returnsignalcircuit just prior to stopping the motor.

The operation may be repeated at the will of the operator, the motorbeing always stopped at the proper time by the automatic breaking of thecircuit to its battery, and the operator is always notified of theposition of the blade 7 by the signal given through the contact brushesand plates and the supplemental returnsignal circuits.

It will be noticed that by reason of the corelative positions of theshafts 4 and 25 and the arms 19 and 32 when the parts are in the extremepositions, either safety or danger, the arm 32 will form a right anglewith thearm 19, and thus, as it were, lock the shafts 4 and 25 fromrotation due to the attempted movement of the blade or the arm 5 fromwithout the housing 47. In other words, should the blade be in thesafety position and any one attempt to turn the signal by grasping thearm 5 and moving it, this will be impossible, as the arm 32 and the arm19 are at right angles to each other, and hence in their neutralposition. The same is also true of the parts when they are in theirdanger-indicating position.

To more positively lock the parts in such positions, the arm 19 may beprovided in its groove 19 with curved spring members 50 50 toengage thewrist-pin 34 as the parts reach the extreme l mit of their safety anddanger positions to more positively hold the arm 32 and the arm 19 atright angles to one another, as shown in the modified form of Fig. 12.

Whenever it is desired to attract local attention to the movement of theblade 7 say at night at a small station where there is no nighttelegraph-operator or in any other casea switch (preferably a duplicateof the motor-control switch MCS) may be placed in circuit With the wire42 so that the current will pass through the magnet 71 of such switchwhenever the blade 7 is raised to the danger position, and thus attractits armature 71 and cause its closure-contact 71 to close the circuitbetween its contacts 71 71 Connected with the contacts 71 71 is abattery 72 and a bell 73 in the station-agentsbedroom or office, orboth, or any desired place, and the raising of the blade 7 to the dangerposition will thus cause said bell to ring and continue ringing untilthe circuit is broken by the agent tripping the bar 71 (See Fig. 13.)

Instead of arranging the apparatus as shown in Fig. 13 a thirdcircuit-closer 81 like the circuit-closer 31 can be placed on the collar28 and close a local circuit through contact-blades 82 82, in whichcircuit a bell 73 and a battery 72 is connected so that the bell willring when the blade 7 is in the danger position until the circuit isbroken by the station agent through the medium of a switch 85 or anyother desired means.

From the foregoing description, taken in connection with theaccompanying drawings,

it is thought the complete construction, op-

eration, and many advantages of my invention will be readily understoodby those skilled in the art to which it ap pertains.

Having thus described my invention ,what- I claim, and desire to secureby Letters Patent, is-

1. In a semaphore of the class described, an oscillating signal-shaft, asemaphore-arm on said signal-shaft, a rotatable drive-shaft, a crank onthe drive-shaft and a slotted arm on the signal-shaft cooperativelydirectly connected whereby the signal-shaft may be operated by therotatable shaft, an electric allyoperated means for unidirectionallyrotating said drive-shaft, and a circuit-controller for saidelectrically-operated means, and means carried by the drive-shaft foropening said controller at times to break the electric circuitsubstantially as shown and described.

2. In a signaling apparatus, an oscillating semaphore, a rotatabledrive-shaft, an oscillating semaphore, a crank on the drive-shaft, aslotted arm on the semaphore-shaft for cooperating with said crank,electrically-operating means for intermittently rotating the drive-shaftalways in the same direction to oscillate the semaphore to alternatelydisplay safety and danger signals, a circuit-controller for saidelectrically-operated means, and means carried by the drive-shaft foroperating said circuit-controller to break the electric circuit of theelectrically-operated means substantially as shown-and described.

3. In a semaphore of the class described, an oscillating signal-shaft, asemaphore-arm on said signal-shaft, a rotatable drive-shaft, connectionsbetween the drive-shaft and the semaphore whereby the rotary motion ofthe drive-shaft is converted into oscillating mo tion at the semaphore,an electric motor for imparting unidirectional rotation to thedrive-shaft, an electric operating-cirouit for said motor, acircuit-controller withinsaid electric circuit, means carried by thedriveshaft for operating the circuit-controller to open the electriccircuit, and electromagnetic devices for operating thecircuit-controller to IIO close the circuit at times substantially asshown and described.

4. A semaphore, comprising an oscillatable signaling-shaft, aunidirectionally-rotatable drive-shaft, a crank on said driveshaft, aslotted arm on said signal-shaft cooperating with said crank, anelectricallyoperating mechanism for intermittently rotating thedrive-shaft unidirectionally, said electrically-operating mechanismincluding an electric motor and an operating-circuit therefor, acircuit-controller within said operating-circuit, means forautomatically operating said. circuit-controller to i open the circuitintermittently, and manually-controlled electromagnetic devices foroperating the circuit-controller to close the motorcir cuit at times,substantially as shown and described.

5. A semaphore of the class described, comprising an oscillating signalcarrying shaft, and a rotatable drive-shaft, a crank on the drive-shaftand a slotted arm on the signal-shaft cooperatively connected with thecrank, said connections between the rotatable drive-shaft and thesignal-carry ing shaft including means for locking said signal-carryingshaft from rotation at times, electricallyoperated means for rotatingsaid driveshaft,

in one direction only, to oscillate the signalshaft, substantially asshown and described.

6. In a signaling apparatus, an oscillating signal-carrying shaft, arotatable drive-shaft cooperatively connected therewith, means forrotating'the driveshaft always in one directionto oscillate thesignal-shaft to alternately display safety and danger signals, andreturn-signaling circuits including circuitclosers cooperativelyconnected with the semaphore-operating mechanism foroperating'return-signals at each movement of the semaphore-signals,substantially as shown and described.

7. A signaling apparatus comprising an oscillatable semaphore-carryingshaft, a rotatable driveshaft, a slotted arm on the semaphoreshaft, acrank on the rotatable drive-shaft having a pin for engagement in saidslot of the arm, an electrically-operated means for unidirectionallyrotating the driveshaft to oscillate the semaphore-shaft, and meanscarried by the .slotted arm for locking the pin and arm togetherat'tijmes to hold the semaphore from movement when the drive mechanismceases to operate at times, substantially as shown and described.

8. An apparatus of the class described, comprising an oscillatingsemaphore-signalcarrying shaft and a rotatable drive-shaft cooperativelyconnected therewith to impart oscillatory motion to the signal-shaft,electrically-controlled mechanism' for intermittently rotating saiddrive-shaft unidirectionally, return-signaling circuits includingcircuit-closers cooperatively connected with the semaphore-operatingmechanism for operating return-signals at each movement of thesemaphore, substantially as shown and deally, return-signaling circuitsincluding circuit-closers cooperatively connected with the Vsemaphore-Opel ating mechanism for operatingreturn-s gnals at eachmovement of the semaphore, and means for automatically rendering saidelectrically-controlled mechanism inoperative at times, substantially as.shown and described. a

' 10. In an apparatus of the class described, an oscillating semaphoresignal carrying shaft, a rotatable drive-shaft, connections between saiddrive-shaft and said signalshaft whereby the motion of the former isimparted oscillatingly'to the latter, electrically-operating mechanismfor rotating said drive-shaft unidirectionally, means for automaticallycutting out said electrically-operating mechanism at times, and meansfor simultaneously operating a return-signal substantially as shown anddescribed.

11. In an apparatus of the class described, an oscillatingsemaphore-signal-carrying shaft, a rotatable drive-shaft, connectionsbetween said drive-shaft and said signalshaft whereby the motion of theformer is imparted oscillatingly to the latter, electrically-operatingmechanism for rotating said driveshaft unidirectionally, means forautomatically cutting out said electrically-open ating mechanism attimes, means for simultaneously operating a return-signal, andelectrically-controlled mechanism for again cutting in saidelectrically-operating mechanism at times, substantially as shown andde-' scribed.

12. In an apparatus of the class described, an oscillating signal-shaft,a rotatable driveshaft, means for rotating said drive-shaftunidirectionally, connections between said rotatable shaft and saidoscillating signalshaft for cooperatively connecting the same,

electric motor, gear connections between the motor and the drive-shaft,substantially as shown and described.

14. A semaphore of the class described,

comprising an oscillatable signal-carrying shaft, a unidirectionalrotatable drive-shaft, a crank-shaft secured to the drive-shaft, an armsecured to the signal-shaft having a slotted portion for cooperatingwith said crank, IO a unidirectionally-rotatable shaft electric motor,gear connections between the motor and the drive-shaft, an automaticallyoperated circuit-controller for cutting out the drive-motor at times,and manually-controlled electromagnetic means for operating thecircuit-controller to cut in the motor at times, substantially as shownand described.

15. In a semaphore of the class described, an oscillatablesignal-carrying shaft, a rotatable drive-shaft, a crank carried by thedrive-shaft, a slotted lever carried by the signaling-shaft andcooperatively connected with the drive-shaft crank whereby the lattermay be operated by the former, an elec- 5 trio motor for rotating saiddrive-shaft unidirectionally, gear connections between the electricmotor and the driveshaft and means for automatically opening themotorcircuit at times, substantially as shown and 3 described.

16. In a semaphore of the class described, an oscillatablesignal-carrying shaft, a rotatable drive-shaft, connections between thedrive-shaft and the signaling-shaft whereby I the latter may be operatedby the former, an

electric motor for rotating said drive-shaft unidirectionally, means forautomatically opening the motor-circuit at times, and return-si nalcircuits controlled by said drive- 4 shaft f or operating areturn-signal as the motorcircuit is opened, substantially as shown anddescribed.

I 17. In a semaphore of the class described,

an oscillatable signal-carrying shaft, a rotatable drive-shaft,connections between the drive-shaft and the signaling-shaft whereby thelatter may be operated by the former, an electric motor for rotatingsaid drive-shaft unidirectionally, means for automatically W opening themotor-circuit at times, and an electrically-controlled means for againclosingthe motor-circuit said connections between.the drive andsignaling shafts comprising a slotted arm carried by the signal- 5 5ing-shaft, and a crank carried by the driveshaft for cooperating withthe slotted arm substantially as shown and described.

18. In a semaphore of the class described, an oscillatablesignal-carrying shaft, a rotatable drive-shaft, connections between thedrive-shaft and the signaling-shaft whereby the latter may be operatedby the former, an electric motor for rotating said drive-shaftunidirectionally, means for automatically opening the motor-circuit attimes, returnsignals controlled by said drive-shaft for operating areturn-signal as the motor-circuit is opened, andelectrically-controlled means for again closing the motor-circuit.

1.9. In a semaphore of the class described, an oscillatablesignal-carrying shaft, a rotatable drive-shaft, a crank on thedrive-shaft and a slotted arm on the signal-shaft for cooperating withthe crank wherebythe signaling-shaft maybe operated bythe drive-shaft,an electric motor for rotating said drive-shaft unidirectionally, gearconnections between the electric motor and the drive-shaft means forautomatically opening the motor-circuit at times, and means for lockingthe oscillating shaft from oscillation by application of external meanswhen the motor is at rest, substantially as shown and described.

20. In a semaphore of the class described,

an .oscillatable signal-carrying shaft, a rotatable drive-shaft,connections between the drive-shaft and the signaling-shaft whereby thelatter may be operated by the former, an electric motor for rotatingsaid drive-shaft unidirectionally, means for automatically opening themotor-circuit at times, returnsignal circuits controlled by saiddrive-shaft for operating a return-signal as the motorcircuit is opened,and means for locking the oscillating shaft from oscillation byapplication of external means when the motor is at rest, substantiallyas shown and described.

21. In a semaphore of the class described, an oscillatablesignal-carrying shaft, a rotatable drive-shaft, connections between thedrive-shaft and the signaling-shaft whereby the latter may be operatedby the former, an electric motor for rotating said drive-shaftunidirectionally to the operating-signal shaft, means for automaticallyopening the motorcircuit at times, an electrically-controlled means foragain closing the motor-circuit, and means for locking the oscillatingshaft from oscillation by application of external means when themotor'is at rest said connections between the drive and signaling shaftscomprising a crank carried by the drive-shaft and a slotted arm carriedby the signaling-shaft cooperatively connected with the. cranksubstantially as shown and described.

22. In a semaphore of the class described, an oscillatablesignal-carrying shaft, a rotatable drive-shaft, connections between thedrive-shaft and the signaling-shaft whereby the latter may be operatedby the former, an electric motor for rotating said drive-shaftunidirectionally, and means for automatically opening the motor-circuitat times, return-signals controlled by said drive-shaft for operating areturn-signal as the motorcircuit is opened, electrically controlledmeans for again closing the motor-circuit, and means for locking theoscillating shaft from oscillation by application of external means whenthe motor is at rest, substantially as shown and described.

23. In an apparatus of the class described, a main support, asignal-shaft mounted therein, a supplemental support secured to the mainsupport, a drive shaft mounted in said supplemental support, a crank-armsecured to said drive-shaft, an arm secured to said signaling-shaft,pin-and-slot connections between said arms, electrically-operating meansfor imparting unidirectional rotary movement to said drive-shaft to setthe signals, substantially as shown and described.

24. In an apparatus of the class described, a main support, asignal-shaft mounted therein, a supplemental support secured to the mainsupport, a drive-shaft mounted in said supplemental support, a cranksecured to said drive-shaft, an arm secured to said signaling-shaft,pin-and-slot connections between said arms', electrically operatingmeans for imparting undirectional rotary movement to said drive-shaft toset the signals, and electromechanically-controlled devices for cuttingin and cuttin out the motor from operation substantia ly as shown anddescribed.

25. In an apparatus of the class described, a main support, asignal-shaft mounted therein, a supplemental support secured to the mainsupport, a drive-shaft mounted in said supplemental support, a cranlcarmsecured to said drive-shaft, an arm secured to said signaling-shaft,pin-and-slot connections between said arms, electrically-operati ingmeans for imparting unidirectional rol tary movement to said drive-shaftto set the signal, means for automatically opening the motor-circuit attimes, substantially as shown and described.

26. In an apparatus of the class described, a main support, a sinal-shaft mounted therein, a supplemental support secured to the mainsupport, a drive-shaft mounted in said supplemental support, a crank-armse' cured to said drive-shaft, an arm secured to said signaling-shaft,pin-and-slot connections between said arms, electrically operating meansfor imparting unidirectional rotary movement to said drive-shaft to setthe signals, means controlled by the rotatable drive-shaft forautomatically openin the motor-circuit at times, substantially as shownand described.

27 In an apparatus of the class described, a main support, asignal-shaft mounted therein, a supplemental supportsecured to the mainsupport, a drive-shaft mounted in said supplemental support, a crank-armsecured to said drive-shaft, an arm secured to said signalingshaft,pin-and-slot connections between said arms, electricallyoperating meansfor imparting unidirectional rotary movement to said shaft to set thesignals, means controlled by the rotatable drive-shaft for automaticallyopening the motor-circuit at times, and means controlled by thesemaphore mechanism for operating return-signals when thesemaphore-signals are set.

28. In an apparatus of the class described, a main support, a si'nalshaft mounted therein, a supplemental support secured to the mainsupport, a drive-shaft mountedin said supplemental support, a crank-armse cured to said drive-shaft, an arm secured to said signaling-shaft,pin-and-slot connections between said arms, electrically operating meansfor imparting unidirectional rotary movement to said shaft to setthesignals, means controlled by the semaphore mechanism for operatingreturn-signals when the semaphore-signals are set.

29. In an apparatus of the class described, a main support, asignalshaft mounted therein, a supplemental support secured to the mainsupport, a drive-shaft mounted in said supplemental support, a crank-armsecured to said driveshaft, an arm secured to said signaling-shaft,pin-and-slot connections between said arms, electricallyoperating meansfor imparting unidirectional rotary movement to said shaft to set thesignal, means for automatically opening the motorcircuit at times, andan electrically-energized means for closing the motor-circuit at times.

30. In an apparatus of the class described, a main support, asignal-shaft mounted therein, a supplemental support secured to the mainsupport, a drive-shaft mounted in said supplemental support, a crank-armsecured to said drive-shaft, an arm secured to said signaling-shaft,pin-and-slot connections between said arms, electrically operating meansfor imparting unidirectional rotary movement to said shaft to set thesignals, means for automatically opening the motorcircuit at times, andelectrically-energized means for closing the motor-circuit at times, andmeans controlled by the semaphore mechanism-for operating return-signalswhen the semaphore-signals are set, substantially as shown anddescribed.

31. In an apparatus of the class described, supporting-standards havingbearing portions, a signal-carrying shaft mounted therein, asemaphore-signal-carrying arm secured to the shaft, a slottedoperating-arm secured to the shaft, a rotatable drive-shaft mounted inbearings in said support, a crank-arm connected to said drive-shaft, awrist-pin on said crank-arm to enter the slot, in said operating-arm,and an electric motor geared to said drive-shaft to rotate it to operatethe signals, substantially as shown and described.

32. In an apparatus of the class described, upright supportingstandardshaving bearing portions, a signal-shaft mounted therein, asemaphore-signal-carrying arm secured to the shaft, a slottedoperating-arm secured to the shaft, a rotatable drive-shaft mounted inbearings in said support, a crank-arm connected to said drive-shaft, awrist-pin on said. crank-arm to enter the slot in said operatingarm, anelectric motor geared to said driveshaft to rotate it, a motor-circuit,a switch in said motor-circuit, and means controlled by the movement ofthe drive-shaft for opening said switch at times.

33. In an apparatus of the class described, upright supporting-standardshaving bearing portions, a signal-shaft mounted therein, asemaphore-signal-carrying arm secured to the shaft, a slottedoperating-arm secured to the shaft, a rotatable drive-shaft mounted inbearings in said support, a crank-arm con,- nected to said drive-shaft,a wrist-pin on said crank-arm to enter the slot in said operatingarm, anelectric motor geared to said driveshaft to rotate it, a motorcircuit, aswitch in said motor-circuit, means controlled by the movement of thedrive-shaft for opening said switch at times, and electromagneticdevices for closing said switch at times.

34. In an apparatus of the class described, upright supporting-standardshaving bearing portions, a signal-shaft mounted therein, asemapl1ore-signal-carrying arm secured to the shaft, a slottedoperating-arm secured to the shaft, a rotatable drive-shaft mounted inbearings in said support, a crank-arm connected to said drive-shaft, awrist-pin on said cranloarm to enter the slot in said operatingarm, anelectric motor geared to said driveshaft to rotate it, a motor-circuit,a switch in said motor-circuit, means controlled by the movement of thedrive-shaft for opening said switch at times, electromagnetic devicesfor closing said switch at times, and means for lockin said switch toits closed position.

35. In an apparatus of the class described, upright supporting-standardshaving bearing -portions, a signal-shaft mounted therein, a

semaphore-signalcarrying arm secured to the shaft, a slottedoperating-arm secured to the shaft, a rotatable drive-shaft mounted inbearings in said support, a crank-arm connected to said drive-shaft, awrist-pin on said crank-arm to enter the slot in said operatingarm, anelectric motor geared to said driveshaft to rotate it, a motor-circuit,a switch in said motor-circuit, means controlled by the movement of thedrive-shaft for opening said switch at times, electromagnetic devicesfor closing said switch at times, means for looking said switch to itsclosed position, and return-signals controlled by the movement of thedrive-shaft to indicate the position of the semaphore-signals.

86. In an apparatus of the class described, supporting-standards. havingbearing portions, a signahcarrying shaft, mounted therein, asemaphore-carrying arm secured to the shaft, a slotted operating-armsecured to the shaft, a rotatable drive-shaft mounted in bearings insaid support, a crank-arm connected to said drive-shaft, a wrist-pin onsaid crank-arm to enter the slot in said operatingarm, an electric motorgeared to said driveshaft to rotate it to operate the signals, andreturn-signals controlled by the movement of the drive-shaft to indicatethe position of the semaphore-signals.

37. In an apparatus of the class described, upright supports havingbearing portions, a signal-shaft mounted therein, asemaphoresignal-carrying arm secured to the shaft, a slottedoperating-arm secured to the shaft, a pair of supplementalglass-carrying arms secured to the shaft, a signal-light secured betweenthe supports to cooperate with the sig nalglasses, a rotatabledrive-shaft mounted in bearings in said support, a crank-arm connectedto said drive-shaft, a wrist-pin on said crank-arm to enter the. slot insaid operatingarm, and an electric motor geared to said drive shaft torotate it substantially as shown and described,

38. In an apparatus of the class described, upright supports havingbearing portions, a signal-shaft mounted therein, asemaphoresignal-carrying arm secured to the shaft, a

slotted operating-arm secured to the shaft, a

pair of supplemental glass-carrying arms secured to the shaft, asignal-light secured between the supports to cooperate with thesignal-glasses, a rotatable drive-shaft mounted in bearings in saidsupport, a crankarm connected to said drive-shaft, a wrist-pin on saidcrank-arm to enter the slot in said operatingarm, an electric motorgeared to said driveshaft to rotate it, and return-signals controlled bythe movement of the drive-shaft to indicate the position of thesemaphore and light signals, substantially as shown and described.

39. In an apparatus of the class described, supporting standards havingbearing portions, a signal-carrying shaft mounted therein, a semaphoresignal-carrying arm secured to the shaft, a slotted operating-armsecured to the shaft, a rotatable drive-shaft mounted in bearings insaid support, a crank-arm connected to said drive-shaft, a wrist-pin onsaid I crank-arm to enter the slot, in said operatingarm, an electricmotor geared to said driveshaft to rotate it to operate the signals,returnsignals controlled by the movement of the drive-shaft to indicatethe position of the semaphore-signals, a motor-circuit, a switch in saidmotor-circuit, and means controlled by the movement of the drive-shaftfor opening said switch at times, substantially as shown and described.

40. In an apparatus of the class described, supporting-standards havingbearing p0r tions, a signal-carrying sh aft mounted therein, asemaphore-signal-carrying arm secured to the shaft, a slottedoperating-arm secured to the shaft, a rotatable driveshaft mounted inbearings in said support, a crank-arm connected to said drive-shaft, awrist-pin on said crank-arm to enter the slot, in said operatingarm, anelectric motor geared to said driveshaft to rotate it to operate thesignals, return-signals controlled by the movement of thedrive-shaft toindicate the position of the semaphore-signals, a motor-circuit, aswitch in said motorcircuit, means controlled by the movement of thedrive shaft for opening said switch at times, and electromagnetic devices for closing said switch at times, substantially as shown anddescribed 41. In an apparatus of the class described, upright supportshaving bearing portions, a signal-shaft mounted therein, asemaphoresignal-carrying arm secured to the shaft, a slottedoperating-arm secured to the shaft, a pair of supplementalglass-carrying arms secured to the shaft, a signal-light'secured betweenthe supports to cooperate with the signal-glasses, a rotatabledrive-shaft mounted in bearings in said support, a crank-arm connectedto said drive-shaft, a wrist-pin on said crank-arm to enter the slot insaid operatingarm, an electric motor geared to said driveshaft to rotateit, a motorcircuit, a switch in said motor-circuit, means for lockingsaid switch to its closed position, and means controlled by the movementof the drive-shaft for unlocking said switch at times, substantially asshown and described.

42. In an apparatus of the class described, upright supports havingbearing portions, a signal-shaft mounted therein, asemaphoresignal-carrying arm secured to the shaft, a slottedoperating-arm secured to the shaft, a pair of supplementalglass-carrying arms secured to the shaft, a signal-light secured betweenthe supports to cooperate with the signal-glasses, a rotatabledrive-shaft mounted in bearings in said support, a crank-arm connectedto said drive-shaft, a wrist-pin on said crank-arm to enter the slot insaid operatingarm, an electric motor geared to said driveshaft to rotateit, a motor-circuit, a switch in said motor-circuit, means for lockingsaid switch to its closed position, means con trolled by the movement ofthe drive-shaft for unlocking said switch at times, and return electricsignal-circuits including circuit-closing terminals and circuit-closerscarried by the drive-shaft for closing said return-signal circuits attimes, substantially as shown and described.

43. In an apparatus of the class described, an oscillating signal-shaft,a rotating driveshaft, connections between said drive-shaft and saidsignal-shaft whereby the rotary mocircuit, a switch in saidelectric-motor circuit, means for normally holding said switch closed,means controlled by the drive-shaft movement for releasing said switchto open the motor-circuitattimesa main-line settingcircuit,electromagnetically-operating means in said main-line setting-circuitfor closing the. motor circuit at times, substantially as shown anddescribed.

44. In an apparatus of the class described,

the motor-circuit at times, a main-line settingcircuit,electromagnetically-operating means in said main-line setting-circuitfor closing the motor-circuit at times, and a pair of return-signalingcircuits, said return-circuits including circuit-closers controlled bythe movement of the drive-shaft for closing and opening saidreturn-signal circuits, .all being arranged substantially as shown anddescribed.

45. In an apparatus of the class described, an oscillatablesemaphore-signalcarrying shaft, a rotatable drive-shaft an electricmotor for rotating said drive-shaft, connections between the driveshaftand the signal-shaft whereby the rotary motion of the former isconverted into oscillating motion in the latter, said connectionsbetween the drive and signal shafts being so arranged that when thesignal-shaft is at the extreme movement of its danger and safetypositions the signal-shaft will be locked from independent movement,substantially as shown and described.

46. In an apparatus of the class described, an oscillatable semaphoresignal carrying shaft, a rotatable driveshaft, an electric motor forrotating said drive-shaft, connections between the drive-shaft and thesignal-shaft whereby the rotary motion of the former is lbs convertedinto oscillating motion in the latter,

I o turn-signals from the semaphore to the poweroperators station, toindicate the position of the signals, and means whereby thesignaling-shaftcan be locked from independent movement When in itseXtremedanger or safety positions substantially as shown and :5described.

. JEAN F. WEBB, JR.

Witnesses:

LAFAYETTE F. CRAWFORD, JEAN F. WEBB.

